For all my emails I send in the last hour(s) or so, I received a warning, pointing to some internal fialing system "mailuser.nyi.internal[/var/run/lmtpforward/outgoing]
said: 421 4.4.1 No outgoing server connection via compute4 "

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# THIS IS A WARNING ONLY. YOU DO NOT NEED TO RESEND YOUR MESSAGE. #
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Your message could not be delivered for more than 1 hour(s).
It will be retried until it is 1 day(s) old.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

I would have expected to see an entry on the fastmailstatus.com site before someone takes the time to send an email to customer support and it get's answered as well... Also, because this error occurs for several hours already.

I would have expected to see an entry on the fastmailstatus.com site before someone takes the time to send an email to customer support and it get's answered as well... Also, because this error occurs for several hours already.

Yes, I am also surprised that the status page reports that everything is ok.
IMHO they should update the status page first.
IMHO2: I actually think they should make the status page automated (i.e. monitoring services)

It's possible that only you (or a very small number of people) were affected. Remember that Fastmail reported a network connection problem between some racks the previous day. I wonder if your problem is related.